Mineral salts for fresh water
Amtra KH + Salt supplement to increase carbonate hardness
Cold water, Koi carp, Oranda, Axolotl
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How to test?
1. Rinse the test tube repeatedly with the water to be analyzed.
2. Fill the test tube with 5 ml of water to be analyzed.
3. Add 1 drop of KH reagent and shake the test tube, the solution will become blue. The number of drops necessary to make the solution from blue to yellow, will indicate the amount of water degrees of water. If the water in the test tube becomes yellow to the first drop, it means that the carbonate hardness is less than or equal to 1st kH.
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